Oil-stove



(NoModeL) E. A. EDWARDS. OIL STOVE.

N0. 492,718. Patented Feb. 28; 1893.

UNITED STATES PATENT OFFICE.

EVAN A. EDWARDS, OF TOLEDO, OHIO.

OIL-STOVE.

SPECIFICATION forming part of Letters Patent No. 492,718, dated February 28, 1893.

3 Application filed December 7, 1891- Serial No. 414,324. (No model.) I

To all whom it may concern.-

Be it known that I, EVAN A. EDWARDS, a citizen of the United States, residing at T0- ledo, in the county of Lucas and State of Ohio, have invented certain new and useful Im provements in Oil-Stoves, of which the following is a specification.

My present invention is designed more par; ticularly for heating stoves, but one part of my invention relates specifically to a burner which is adapted for a much wider application than to the particular form of heater to which I have here shown it applied.

The principal feature of my invention is the burner which consists, broadly speaking,-

of a pair of parallel plates, one of which is apertured, said plates being separated to form a restricted air draft space open on all sides between them and having a central oil feed. In carrying out this part of my invention, I prefer to construct the lower plate with a central boss through which the supply pipe enters and projects beyond the apertured plate, and a surrounding oil receptacle, consisting either of an absorbent material or a depression or both. Over the projecting end of the oil supply pipe is a vaporizing dome which rests upon the base and communicates with the surrounding oil receptacle through spaces formed by serrations in its lower supporting end. The upper apertured plate is supported by the base of the stove, of which base it may form part, and this base is further provided with suitable supporting legs and a bracket for supporting a reservoir in convenient relation to the oil supply tube, which passes through the central boss in the bottom of the burner. So much of my burneris applicable to other forms of stoves and I find it well adapted for substitution for old stoves already in use.

My invention further consists in a new and improved stove body for air heating purposes,

and in the combination of said body with myparticular form of burner. The stove body combustion chamber has near its top an outlet with an upwardly presented opening flue formed by passing a pipe through the adjacent walls of the two drums and terminating at the opposite wall of the inner drum, an opening being previously made in the upper side of the pipe. form of body is to supply pure air through the air flue to the hot air chamber, causing it to linger there until heated, and to facilitate the heating of the air in said chamber by insuring the impact of the gases and products of combustion against the top of the combustion chamber (which forms the bottom of the hot air chamber) before they canescape.

If preferred, a deflecting collar may be formed on or attached to the vaporizing dome for the purpose of throwing the burning gas outward against the walls of the combustion chamber and assist .in the result aimed at by heating the air as it rises through the annular air flue. This is not essential, however, since not only may the deflector be omitted The effect of this particular but the entire vaporizing dome may be dispensed with and the central supply pipe terminated in or at the topof the boss. I have found this last mentioned arrangement to produce good results.

In the accompanying drawings I have shown a single stove embodying all the features of my invention, but it will be observed that the burner may be used separately from the other parts, and the omission of other parts above referred to may be resorted to without departing from the spirit of my invention.

Figure 1 is a vertical central section of an oil stove embodying the features of my invention; and Fig. 2 is a horizontal section taken on the irregular line m0c in Fig. l.

1 represents the burner which consists of the upper plate 2having the aperture 3 and the lower parallel plate 4 having the central boss 5, through which passes the feed pipe 6. Surrounding the boss is the oil receptacle 7 which may consist simply of a depression or which may be provided with an annular ring 8 of asbestus or other absorbent material. The lower plate 4 is attached to the upper plate 2 by means of bolts 9 and is separated therefrom by sleeves 10 so as to form the restricted air draft space 11, which is open at all sides.

around this end 12 is a vaporizing dome 13, which rests at its lower end 14 upon'the boss 5 of the lower plate 4. The lower supporting end 14 of the vaporizing dome 13 is serrated in order to form spaces through which the oil may escape notwithstanding the fact that the dome rests on said boss. Around the vaporizing dome and somewhat above the center is a flaring deflector 15 which, when the burner is in :full operation acts to deflect the burning gases and throw it outward against the wall of the stove as will hereinafter appear.

with flanges 17 around which are seated the respective drums 18, 19.

20 and 21. larger than the bridges 20 for the accommodation of :rods 22 which pass through perfora- I tions 23 in said bridges and through the top 24 of .the stove for the purpose of holding said top and the base'of the stove together,

with the'intervening drum 19 securely.

.25 represents a door which is formed in the side-of the body of the stove in such manner 1 as to give access to the interior-drum 18 for the initial igniting of the oil.

Concentric drums 18 and 19 are so formed and of such relative size as to form a central combustionchamber26,asurroundingannular ai-r flue 27 and an enlarged upper hot air chamt ber 28. The combustion chamber 26 is closed at top and has an outlet flue 29 consisting of a pipe passed through the adjacent wallsof drums 18, 19, and cut off by the abutment of its inner end against the wall of thedrum 18 opposite to where it enters, as shown at 30. Ihe combustion chamber 26 communicates with this outlet flue by an upwardly presented opening 31 formed in the pipe 29.

erture 3 for supporting combustion.

The burner 1 is connected to the base 16 bymeans of the bridges The bridges 21 are made slightly The 1 bottom of the combustion chamber is closed by the burner 1 with the exception that air may-enter through the draft space 11 and ap- The air In order to restrict the outlet of air from the combustion chamber 28 and cause it to linger in said chamber until it becomes thoroughly heated, the top 24 is perforated and these perforations are sufficient in number to allow an ample quantity to pass off and thus set up a circulation through the stove to rely upon for heating the room. The opening 31 in the outlet flue of the combustion chamber is presented upwardly for the purpose of insuring an impact of the gases or products of combustion against the top of the combustion chamber which forms the bottom of the hot air chamber.

32 represents a bracket which is attached to the side of the base 16 of the stove and carries a shelf 33 forthesupport of the reservoir tank 34. The reservoir 34 communicates through pipe 35 with the centralsupply pipe 6 and the flow of the oil through said pipe 35 16 represents the base of the stove provided is regulated by valve 36.

A burner constructed in accordance with my invention above described will be found to insure'complete combustion of the fuel by simple .means. The lower plate of the burner maybe .readily removed by unscrewing the nuts of bolts 9 and the draft space 11 between the parallel plates may be regulated by changing the sleeves 10. The burner is not only well adapted for the stove with which it is shown combined, but it is also well adapted for application to stoves of other forms.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. An oil burner comprising an upper apertured plate, a lower parallel plate spaced from the upper plate, and having the central feed pipe projecting upward through the upper plate, and a vaporizing dome surrounding the projecting end of the feed pipe, substantially as and for the purpose set forth.

2. In an oil burner the combination of the upper apertured plate; the lower plate supported parallel with the upper plate with a space between the plates, and having the central boss, the upwardly projecting feed pipe and the oil receptacle surrounding said boss and feed pipe; and the vaporizing dome surrounding said projecting feed pipe and resting on the boss, all substantially as and for the purpose set forth.

EVAN A. EDWARDS. Witnesses:

JOHN T. GREER, EDNA MORRIS. 

